IRG Documents Database and Compendium


Search and Download IRG Documents:



Between and , sort by


Displaying your search results

Your search resulted in 2 documents.


Fungicidal properties of boron containing preservative Borosol 9
2004 - IRG/WP 04-30348
The fungicidal properties of new boron containing wood preservative Borosol 9 is described in this paper. These properties were of particular interest as this new boron containing preservative, exhibit very good performance against wood damaging insects. But because the tested boron formulation contain also nitrogen compounds, we wanted to verify if nitrogen as a nutrient could promote growth of wood rotting and blue stain fungi. Fungicidal activity of the boron based wood preservative Borosol 9 was evaluated according to the standard EN 113 procedure. Samples made of Norway spruce were brushed two times with 10% aqueous solution of Borosol 9, air dried, steam sterilized and exposed to the following wood rotting fungi: Coniophora puteana, Gloeophyllum trabeum and Lentinus lepideus. After 16 weeks of exposure the specimens were isolated and their mass losses were determined. After this respective period, the treated wood samples lost on an average less than 1 % of their initial mass. Parallel to this experiment, blue stain testing according to the EN 152-1 procedure was performed. Specimens brushed with Borosol were for six weeks exposed to blue stain fungi Aureobasidium pullulans and Sclerophoma pithyophila. After testing period the specimens were isolated and anti blue stain efficacy was determined visually. Both tests showed that Borosol 9 has fungicidal properties. Preservative, containing the boric acid - alkanolamine complex did not enhance fungal decay or growth. On the contrary, they showed high activity against wood decay and blue stain fungi.
G Babuder, M Petric, F Cadež, M Humar, F Pohleven


Effectiveness of the new chemical wood preservative Borosol 9? against a house longhorn beetle Hylotrupes bajulus
2004 - IRG/WP 04-30355
Chemical wood preservative Borosol 9, consisting of boric acid - alkanolamine complex, is a new wood preservative with proven efficacy against wood decay fungi. However, we were interested in its efficacy against larvae of house longhorn beetle (Hylotrupes bajulus). Thus, experiment according to the EN 46 procedure was performed. Specimens made of Norway spruce wood (Picea abies) were brushed twice with 10 % Borosol 9 solution. The results showed that most of the larvae were able to tunnel into the treated specimens, but none of them were found alive after the test period of 12 weeks. On the other hand, all control untreated samples were damaged by H. bajulus larvae activity and 98 % of larvae survived. Results indicate that Borosol 9 has an efficient insecticidal activity and acts protective against wood boring insects.
G Babuder, M Petric, F Cadež, M Humar, F Pohleven